From 9b657860554657ca8cd2977206baf0784e4e3ae9 Mon Sep 17 00:00:00 2001
From: Peter Nelson <peter1138@openttd.org>
Date: Thu, 20 Feb 2025 18:57:17 +0000
Subject: [PATCH] Fix: Incorrect snow density when making rocks snowy. (#13626)

Rocks do not use density, but snowy rocks use snow density. Therefore it should start at zero like non-rocky land.
---
 src/clear_cmd.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/clear_cmd.cpp b/src/clear_cmd.cpp
index ccbb85c0a5..3a72539f41 100644
--- a/src/clear_cmd.cpp
+++ b/src/clear_cmd.cpp
@@ -165,7 +165,8 @@ static void TileLoopClearAlps(TileIndex tile)
 		/* Below the snow line, do nothing if no snow. */
 		/* At or above the snow line, make snow tile if needed. */
 		if (k >= 0) {
-			MakeSnow(tile, IsClearGround(tile, CLEAR_ROCKS) ? GetClearDensity(tile) : 0);
+			/* Snow density is started at 0 so that it can gradually reach the required density. */
+			MakeSnow(tile, 0);
 			MarkTileDirtyByTile(tile);
 		}
 		return;